Facebook said Thursday it took down accounts running a deceptive campaign out of Romania pretending to be Americans supporting US President Donald Trump ahead of the coming election.

The leading online social network removed 35 Facebook accounts, three pages, and 88 Instagram accounts as part of an ongoing fight against “coordinated inauthentic behavior,” according to security policy head Nathaniel Gleicher.

“The people behind this network used fake accounts to pose as Americans, amplify and comment on their own content, and manage pages including some posing as President Trump fan pages,” Gleicher said.

The network posted about the upcoming presidential election; the Trump campaign, conservative ideology, Christian beliefs and the far-right organization Qanon linked to conspiracy theories, according to Facebook.

The Facebook security team determined that the activity originated in Romania and focused on the US.,”We found this network as part of our investigation into suspected coordinated inauthentic behavior ahead of the 2020 election in the US,” Gleicher said.,The network often reposted stories by US conservative news networks and from the Trump campaign, according to Facebook.

Facebook pages in the campaign had about 1,600 followers, while about 7,200 people followed one or more of its Instagram accounts, the California-based internet giant reported.,Coordinated deception such as this “blurs the live between healthy public debate and manipulation,” Gleicher said while briefing reporters.

“We can only tackle one piece of what is a whole-of-society challenge; it is increasingly clear no single organization can handle this alone.”He echoed a call from Facebook chief executive Mark Zuckerberg for political leaders to establish clear rules regarding what kinds of contents or behaviors should not be tolerated by online platforms.

“Even though it is hard to pin down motive, the behavior still violates our policies and we can take down the content,” he said. “It doesn’t matter what side they are on.”